MKVToolNix v14.0.0 released

I’m releasing MKVToolNix v14.0.0. It strikes a nice balance between bug fixes and new features/enhancements.

Changes for package maintainers: a new translation of the programs to Romanian (ro.po) has been added. There are two other minor changes you should be aware of. Please see the NEWS section “Build system changes” below for details.

Deprecation warning

This is a reminder that certain features having been deprecated since v9.7.0. They’re scheduled to be removed in the first release of 2018. These features are:

mkvmerge: the options “–identify-verbose”, “–identify-for-gui”, “–identify-for-mmg” and “–identification-format verbose” (use “–identification-format json –identify” or its short form “-J” instead)

New features and enhancements

mkvmerge: AAC: implemented support for AAC with 960 samples per frame. Implements #2031.

mkvmerge: identification: if the encoding/character set of a text subtitle track is known (e.g. because a byte order mark is present in the file), then it will be output during identification as the encoding property. Implements mkvmerge’s part of #2053.

mkvmerge, mkvpropedit, MKVToolNix GUI (chapter editor): added support for chapters in WebM files that is spec-compliant by removing all tag elements not supported by the WebM spec. Implements #2002.

mkvpropedit: added support for tags in WebM files that is spec-compliant by removing all tag elements not supported by the WebM spec.

MKVToolNix GUI: multiplexer: if the encoding/character set of a subtitle track cannot be changed, the GUI will deactivate the "subtitle character set" drop-down box and ignore changes to it when multiple tracks are selected. Additionally, if the track’s encoding is known and cannot be changed (e.g. due to a byte order mark in the file), that encoding will be selected in the drop-down box automatically. Both changes signal to the user that she doesn’t have to take care of the encoding herself. Implements the GUI’s part of #2053.

MKVToolNix GUI: chapter editor: added a function to the "additional modifications" dialog for calculating and setting the end timestamps. Implements #1887.

MKVToolNix GUI: changed the shortcuts for switching between the various tools from Alt+number (e.g. Alt+1 for the multiplexer tool) to Ctrl+Alt+number in order to avoid clashing with Windows’ input method for arbitrary characters (pressing and holding Alt and typing the codepoint on the number pad). Implements #2034.

MKVToolNix GUI: added a "Window" menu and entries with shortcuts for selecting the next (Ctrl+F6) respectively previous tab (Ctrl+Shift+F6) in the current tool. Implements #1972, #2032.

MKVToolNix GUI: on Windows the GUI will now determine the default font to use by querying Windows for the default UI/message box font instead of using the hardcoded Segoe UI. This might fix issues such as #2003 (unverified).

translations: added a Romanian translation of the programs by Daniel (see AUTHORS).

mkvmerge: MPEG-1/-2 video: the "remove stuffing bytes" feature introduced in v5.8.0 (feature request #734) was broken. In a lot of situations it did not detect the end of a slice correctly and removed 0 bytes that were actually part of the slice structure. Often there were no visual problems as decoders were able to ignore such errors, but in other cases there are visual artifacts upon decoding. As detecting the slice end properly requires parsing the whole slice structure, this feature has been removed again. Fixes #2045.

mkvmerge: MPEG PS reader: fixed mkvmerge trying to handle an "end" code the same way as a "program stream map" code.

mkvmerge: when appending fails the error message details (e.g. "the number of channels differs: 1 and 2") were often not output. Fixes #2046.

MKVToolNix GUI: multiplex tool: implemented a workaround for a crash that could occur during drag & drop if at least one of the columns is hidden. Fixes #2009.

MKVToolNix GUI: multiplex tool: appended tracks can no longer be enabled (selected for multiplexing) if the track they’re going to be appended to is not enabled. Fixes #2039.

MKVToolNix GUI: multiplex tool: if the GUI is set to ensure unique output file names, it will now verify that right before starting to multiplex/adding the job to the queue, too. Fixes #2052.

MKVToolNix GUI: fixed the total progress reverting to 0% instead of staying at 100% when all jobs have finished. This was introduced by the attempt at fixing the computation of the value of total progress bar for multiple jobs running. Fixes #2005.

Build system changes

Boost: the minimum required version has been bumped to 1.49.0. Earlier releases fail to build on my current systems and will therefore not be supported anymore.

configure: when looking for the "nlohnmann JSON" include files configure will now try the path "nlohmann/json.hpp" first, "json.hpp" second (only "json.hpp" was tried before). If neither is found, the copy included in the MKVToolNix sources will be used. Fixes #2048.

Yikes, I didn’t think about AltGr being Alt+Ctrl under the hood at all… (even though I’m a German I’m actually using English keyboard layout). Thanks for pointing that out. I’ll have to change them again, it seems.